▎ 摘　　要

NOVELTY - Olfactory source bearing material sheet-shaped micron-sized graphene oxide and nano scale magnetic silicon dioxide microsphere loaded on the graphene oxide, where one graphene oxide is loaded with multiple magnetic silicon dioxide microsphere, and the magnetic silicon dioxide microsphere is modified with dimethyl siloxane polymer. USE - The olfactory source bearing material useful for police dog training (claimed). ADVANTAGE - The material avoids danger and inconvenience caused by the direct use of explosives or drugs for police dog training. The olfactory source is quickly cleaned, and ensures efficient utilization of the training ground. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing olfactory bearing material, comprising (1) dissolving 0.5-3.5 pts. wt. ferric trichloride hexahydrate in 30-80 vol.% glycol solution, adding 0.1-0.9 pts. wt. graphene oxide, stirring, adding 1-6 pts. wt. strong alkali and weak acid salt, and ultrasonically dispersing to obtain first mixed solution, (2) pouring the first mixed solution into reaction kettle, placing in an oven at 180-220degrees Celsius, reacting for 8-12 hours, cooling to room temperature, carrying out magnetic separation, cleaning, and drying to obtain sheet sandwich nano material composed of graphene oxide and graphene oxide loaded magnetic microsphere, (3) dispersing 1 pts. wt. sheet sandwich nano material in 200 vol.% ethanol, ultrasonically treatment, adding 50 vol.% water, and stirring to obtain the second mixed solution, (4) adding 2-4 vol.% aqueous ammonia with concentration of 30% into the second mixed solution, heating to 45, and maintaining for 20 minutes, adding 3.5-5.5 pts. wt. tetraethyl orthosilicate and 1.5-2.5 pts. wt. vol.% silane coupling agent, and stirring to finish the silica coating, and obtaining double-bond modification of the magnetic microsphere, and (5) dispersing 1 pts. wt. first material in 200 vol.% ethanol or acetonitrile, adding 0.05-0.08 pts. wt. oil phase initiator and 3-10 pts. wt. dimethyl silicon alcohol, performing atom transfer radical polymerization reaction under the inert gas atmosphere to obtain olfactory bearing material, where the unit of weight part is gram, the unit of the volume part is milliliter; and (2) olfactory source preparation system, comprising a hot table and a cold table, where in the use state of the olfactory preparation system, the cold table is located above the hot table, the hot table surface is used for placing the odor source substance on one side of the cold table, the cooling table comprises a cooling plate and a cooling device, the one side of the cooling plate facing to the heat table is for absorbing the olfactory bearing material, the cooling device is located on one side of the cooling plate away from the heat table, the cooling device is for reducing the temperature of the cooling plate surface to reduce the temperature of the smelling source bearing material absorbed on the cooling plate. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of olfactory source preparation system (Drawing includes non-English language text).